BP_Media_Model::rows( $columns )

	static function rows( $columns ) {
		$select = 'SELECT COUNT(*) FROM ' . self::_table();
		$where  = ' where 2=2 ';
		foreach ( $columns as $colname => $colvalue ) {
			if ( is_array( $colvalue ) ) {
				if ( ! isset( $colvalue['compare'] ) ) {
					$compare = 'IN';
				} else {
					$compare = $colvalue['compare'];
				}
				if ( ! isset( $colvalue['value'] ) ) {
					$colvalue['value'] = $colvalue;
				}
				$col_val_comapare = ( $colvalue['value'] ) ? '(\'' . implode( "','", $colvalue['value'] ) . '\')' : '';
				$where            .= " AND " . self::_table() . ".{$colname} {$compare} {$col_val_comapare}";
			} else {
				$where .= " AND " . self::_table() . ".{$colname} = '{$colvalue}'";
			}
		}
		$sql = $select . $where;
		global $wpdb;

		return $wpdb->get_var( $sql );
	}